Means for scouring pipe.



D. H. MURPHY.

MEANS Pop. sooUmNG PIPE,

- APPLICATION FILED MAB.. 24, 1909. 969,1 79, l Patented Sept-6, 1910.

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D. H. MURPHY. MEANS FOR SGOURING PIPE.

4APPLIQAJIJION FILED 11.11.3.24, 1909 969,1 79. Patented sept.. 6, 1910.

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DANIEL HAYES MURPHY, F NEW CASTLE, PENNSYLVANIA.

MEANS FOR SCOURING PIPE.

Specification of Letters Patent.

Patented Sept. 6,- 1910.

Application filed March 24, 1909. Serial No. 485,360.

. To all whom t may concer/n.:

Be it known that I, DANIEL HAYES MURPHY, a citizen of the United States,residing at New Castle, in the county 0f Lawrence and State ofPennsylvania, have invented a certain new and useful Improvement inMeans for Scouring Pipe, of which the following is a full, clear,concise, and exact description, reference being had to the accompanyingdrawings, forming a part of this specification.

My invention relates to a means for scrubbing or scouring the outersurface of pipes, as a preparatory step to electroplating the same.

By my invent-ion, the pipes are supported on suitable spindles by whichrotation is imparted to them, and while rotating, scrubbers consistingof felt, brushes or the like, are brought into engagement with the outersurface of the pipes and held in such position by pressure suflicient tocause the removal of dirt and other impurity that would interfere withthe electrolytic action during the plating operation.

To facilitate the scrubbing and scouring process, abrading material andwater are introduced between the scrubbers and brought thereby intoContact with the outer surface of the pipes, as a result of which agrinding operation takes place at the outer surface of the pipes, whichresults in removing the impurity and outer scale that would otherwiseprevent properly depositing a metallic coating electrolytically uponsuch surface. lVhile any suitable abrading material may be used, I findit convenient to use ordinary sharp sand, and this may be fed betweenthe scrubbers, mixed with the water, or it may be fed separately, asdesired.

The several drawings describing my invention are as follows: Figure l isa vertical sectional view through the machine, taken along the line l, lof Fig. 2; Fig. 2 is a plan view of the machine; Fig. 3 is a sectionalview taken on line 3-3 of Fig. 2; Fig. 4 shows, in sectional view, oneof the pipes and an arrangement of scrubbers consisting of bristlebrushes; Figs. 5 and 6 show in views similar to Figs. l and Q a modifiedform of my scrubbing machine; Fig. 7 shows in transverse section amodified form of driving center; Fig. S shows the means em-y ployed forautomatically reversing the direction of rotation of the pipes; and Fig.9 is a Ksectional View through the scrubbers of one of the'pipes,showing the relation of the pipes to the scrubbers when a coupling islocated on the end of the pipe and treated at the lsame time as thepipe.

Similar reference characters refer to similar parts throughout theseveral views.

As shown in Figs. l, 2 and 3 my machine consists in a framework 2, inwhich a plurality of spindles 3 are rotatably mounted. Each spindlecarries at its right hand end a cone-shaped member or center 4, adaptedto receive one end of a pipe to be treated. Each spindle has rigidlysecured thereto a gear 5, which gears are connected together, 'so as torevolve in the same direction, by intermediate gears 6. One of thespindles 3 has secured thereto tight pulleys 45 and 46 and a loosepulley 47 between them. A straight belt 48 and a crossed belt 49 arearranged to drive the pulleys from any suitable source of power notshown. This spindle 3 also carries a worm 50 engaging a worm wheel' 5l,which carries a pin 52 engaging a slot 53 in a lever 54 pivoted to theframework at 55. The lever 54 has pivoted to its upper end a shifter bar56 adapted to move the belts 48 and 49 from the pulleys 46 and 47 to thepulleys 47 and 45, or vice versa, as the worm wheel 51 is rotated. Bythis means I provide that the pipes are automatically rotated first inone direction and then in the opposite direction for desired intervals.The framework 2 also supports at the right hand side of the machine aplurality of spindles 8, corresponding in number and location,transversely of the machine, with the spindles 3. Each spindle 8 hassecured to its left hand end a supporting center 9, adapted to engagethe right hand end of the pipe l0 to be treated. All of the spindles 8are mounted in a bar 11, which is slidably supported in the framework 2in such a manner that by removing the latches l2 from the rear edge ofthe bar 11, the bar may be moved to the right, thus releasing all of thepipes l0. Each spindle 8' may be moved to the right in the bar 11,against the action of a spring 13, in order to permit the individualadjustment of any one of the pipes 10 while the bar l1 is in position tohold the remaining spindles S in engagement with the corresponding pipe.The springs 13 are of sufcient strength to properly retain the pipe 10in position against the scrubbing action.

In order to scrub or scour the pipes located and rotated as describedabove, use is made of two scrubbers 14 and 15, which are located belowand above the pipes, respectively. The scrubbers may consist of felt, asindicated in Figs. 1, 2, 3 and 9 of brushes, as indicated in Fig. 4, orof any similar material that will cause a grinding action between theabrading material employed and the surface of the pipes as they arerotated.

The scrubber 14 is supported under the pipes 10 by a plate 16, which isheld in posit-ion by springs 17 supported fro-m the framework of themachine. The plate 16 has secured thereto stops 18, adapted to cooperatewith members 19 supported from the framework of the machine in such amanner that the plate 16 cannot -be moved beyond certain limits'ineither direction vertically.

The upper scrubber 15 is secured to the under side of a plate 20 andadapted normally, by means of springs 21, to be forced downward vintoengagement with the pipes 10. The plate 2O has pivotally connectedthereto links 22, to the other ends of which levers 23 pivoted to theframework at 24, 24 are connected. The levers 23 constitute a means bywhich the plate 2O may be raised against the action of the springs 21 topermit the removal of the pipes 10 from the machine. l hen the plate 2Ois raised for this purpose, the bar 11 is moved to the right, afterdepressing the catches 12, and the pipes 10 are then free to be removedfrom the supports 4, vand from the machine. This position of the plate20 also permits the introduction of a new set of pipes 10, which areheld in position by the replacing of the bar 11 and adjustment of thespindles 8, as required to properly engage such pipes, after which thelevers 23 are moved to a position to permit the springs 21 to force thescrubber 15 into engagement with the pipes 10.

In order to introduce water and abrading material between the scrubbers14 and 15, supply pipes 25 are provided, which serve to direct the waterand abrading material between such scrubbers in such a manner that therotation of the pipes 10 will cause such abrading material to be engagedbetween the pipes 10 and the scrubbers, and therefore scour or scrub theouter surface of the pipes. If desired, the water may be introduced byone pipe, as shown at 26, while the abrading material may be introducedin dry condition by a second pipe, as shown at 27. If sand is used asthe abrading material, air may be used to advantage to cause theintroduction of such sand between the scrubbers by means of the pipe 27.My scrubbing machine may be used with any desired combination ofscouring or abrading material. For example, sand or liner grindingmaterial may be used alone, or water may be used alone, or the machinemay be used without either water or abrading material.

The right hand links 22 have pivotally connected to them links 28, theother endsl of which engage eccentrics 29, secured to and driven byshaft 30 supported in suitable bearing from the framework of themachine. pulley 30a ,and it is clear that rotation of this pulley willresult in the operation of the eccentrics 29 to cause reciprocation ofthe links 28 and the consequent longitudinal shifting of the plate 2Owhich, in reality, hangs from the pivot points between the vlinks 22 andthe levers 23. The plate 20 at its forward edge also has pivotallyconnected vthereto the links 31 which are connected with eccentrics 32secured upon a shaft 33 mounted in bearings 34, as best shown in Fig. 3.The shaft 33 is provided with a pulley 35 and it is clear that rotationof this pulley will result in reciproeation of the links 31. The variouslink connections which affect the plate 20 have sufficient clearance topermit of the simultaneous operation ofthe two sets of eccentrics. Itwill be noted that the plate 2O does not shift to -a very considerableextent, but this arrangement is desirable so that the wear upon thescrubber carried by the plate may be equalized and distributed.

The detail shown in Fig. 9 illustrates one of the pipes 10, to which acoupling 10a is secured in position to be scoured or scrubbed. It isfrequently desirable to treat the pipes with the couplings in place, andsince the stock threads on the pipe are almost invariably right handed,it is desirable to secure rotation of all of the spindles 3 in the samedirection as described above.

As shown in Fig. 4, brushes 15a may be secured to the plate 20 toconstitute the upper scrubber, and similar brushes 14L may be secured tothe plate 16 to constitute the lower scrubber, if desired.

In the modification of my machine shown in Figs. 5 and 6, which viewsare taken similarly to Figs. 1 and 2, the scrubbers are divided intosections, in order that each pipe may receive special treatment ifnecessary. It sometimes occurs that some of the pipes are not straight,and if such a pipe is placed in t-he machine with other pipes that arestraight, it is desirable that the bent pipe may receive a properscrubbing or scouring without interfering with similarly treating theother pipes. As shown in this modifi- The shaft 30 is provided with a ication, the several scrubbers 20 are secured to a common plate 41 bymeans of bolts 40. The bolts 40 are so secured in the scrubbers 2()athat the scrubbers may have some moveme-nt relatively to the plate. Aspring 21 is provided for each scrubber E20@L in such a manner that byits thrust against the framework 2, it tends to move the correspondingscrubber 20a down against the surface of the corresponding pipe. It isto be noted that the scrubbers associated with one pipe are entirelyseparate and distinct from the scrubbers associated with each of theother pipes; also, that two scrubbers are shown as operating upc-11 thetop of one pipe. It is apparent that instead of two scrubbers, a greaternumber may be arranged in connection with each pipe, if desired. Theplate 41 has secured to its ends links 22, which operate in a mannersimilar to perform the same function already described in connectionwith the form of my machine shown in Figs. 1 and 2. The amount of motionof the scrubbers 20L relatively to the plate 41 permitted by the bolts40 is such as to permit the scrubbers 20a to conform to anyirregularities that may exist in the conformation of the pipe without,however, interfering with common control of the scrubbers 20 by theplate 41 when it is desired to raise the scrubbers out of engagementwith the pipes 10 to remove the treated pipes and insert a second setfor treatment. In a similar manner, separate scrubbers 16a are providedbeneath the pipes 10, each being provided with its individual spring 17by which it is forced upward against the surface of the pipe. Thescrubbers 16a are secured to the plate 42 by bolts 43, in a mannersimilar to the securing of the scrubbers 20l to the plate 41. The plate41 therefore prevents displacement of the scrubbers 1Ga relativelytoeach other, and also prevents the springs 17 moving the scrubbers toofar in a vertical direction when the pipes 10 are removed from themachine by the cooperation of the stops 19 with the ends of such plate.In this modification of my invention, water and abrading material,either singly or together, may be supplied to the top of the plate 41 bymeans of pipes 44, the openings in the plate serving to equalize thedistribution to the various scrubbers.

The center 4il sho-wn in Fig. 5 is of a form adapted for use undercertain conditions, requiring considerable driving force to rotate thepipes. The conformation as indicated in Fig. 7 which is a sectional viewtaken along the line -a: in Fig. 5, shows the manner in which thesurface of the center is toothed, or corrugated, to insure the positiveengagement of same with the pipes. Thile my scrubbing machine is shownin the drawings as occupying a horizontal position, it is to be.understood that it may be used in other positions if desired, as, forinstance, in a vertical position, or in any other position in which itmay be found convenient to dispose the machine.

IVhile I have shown my invention in the particular embodiment hereindisclosed, I do not, however, limit myself to this construction, anddesire to claim broadly any equivalent modification that will suggestitself to tho-se skilled in the art.

What I claim is:

1. In a machine for scouring pipes, supports for the pipes, means forrotating the pipes, a scrubbing member extending over each side of saidpipes, and means for supplying abrading material between such scrubbingmembers.

2. In a machine for scouring pipes, supports for the pipes, means forrotating the pipes, a scrubbing unit on each side of said pipes, meansfor bringing said scrubbing units into engagement with the pipes, andmeans for shifting such units in their own planes relatively to thesupports.

3. In a machine for scouring pipes, supports for the pipes, means forrotating the pipes, a scrubber on each side of said pipes, means forbringing scrubbers into engagement with the pipes, means for shiftingsuch scrubbers in their own planes relatively to the supports, and meansfor supplying abrading material and water to such scrubbers.

4. In a machine for scouring pipes, supports for the pipes, means forrotating the pipes, means for bringing scrubbers into engagement withthe pipes, and means for moving such scrubbers transversely of thepipes.

5. In a machine for scouring pipes, supports for the pipes, means forrotating the pipes, means for bringing scrubbers into engagement withthe pipes, and means for moving such scrubbers longitudinally andtransversely of the pipes.

6. In a machine for scouring pipes, supports for the pipes, means forrotating the pipes, a scrubber on each side of said pipes, resilientmeans for bringing scrubbers into engagement with the pipes, means forshifting such scrubbers in their own planes relatively to the supports,and means for supplying abrading material and water to such scrubbers.

7 In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, and scrubbing material supported by springs under the pipesand in engagement therewith for scouring the pipes as they are rotated.

8. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, and a scrubbing unit extending transversely of the pipes andhaving its surface in engagement therewith for scouring the pipes asthey are rotated, the centers at the other end of the pipes beingremovable to permit the removal of the pipes from or their introductioninto the machine.

9. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end or' the pipes for rotatingsuch pipes, scrubbing material supported under the pipes and inengagement therewith for scouring the pipes as they are rotated, andcommon means for withdrawing the centers from the other end of the pipesto permit the removal of the pipes from or their introduction into themachine.

10. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers lat one end of the pipes for rotatingsuch pipes, scrubbing material supported under t-he pipes and inengagement therewith for scouring the pipes as they are rotated, andcommon means for withdrawing the centers from the other end of the pipesto permit the removal of the pipes from or their introduction into themachine, such centers being capable of independent and separatewithdrawal in such common means.

11. In a machine for scouring pipes, centers for supporting the pipes,gearing con nected with the centers at one end of .the`

pipes for rotating such pipes, a -scrubbing unit extending transverselyunder the pipes and in engagement therewith Jfor scouring the Apipes asthey are rotated, and a scrubbing unit extending transversely over thepipes and y'held in vengagement therewith, the centers at the other endof the pipes be ing removable to permit the removal of the pipes from ortheir introduction into the machine.

12. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, scrubbing material supported under the pipes and inengagement therewith for scouring the pipes as they are rotated,scrubbing material sup ported over the pipes and held in engagementtherewith, and common means for withdrawing the centers from the otherend of the pipes to permit the removal of the pipes from or theirintroduction into the machine.

13. In a machine for'scouring pipes, `centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, scrubbing material supported under the pipes and inengagement therewith for scouring the pipes as they are rotated, andscrubbing material supported over the pipes and held in engagementtherewith, such centers being capable of independent and separatewithdrawal in their support.

14. In a. machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, a scrubbing unit extending transversely of the pipes and inengagement therewith for scouring the pipes as they are rotated, andmeans for feeding sand and water to such scrubbing unit.

15. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, a scrubbing unit extending transversely of the pipes and in.engagement therewith for scouring the pipes as they are rotated, thecenters at the other end of the pipes being removable to permit theremoval of the pipes from or their introduction into the machine, kandmeans for feeding sand and water to such scrubbing unit.

16. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, a scrubbing unit extending transversely under the pipes andin engagement therewith for scouring the pipes as they are rotated, ascrubbing unit extending transversely over the pipes and held inengagement therewith, and means for feeding sand and water between theupper and lower scrubbing units.

17. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, a scrubbing unit extending transversely under the pipes andin engagement therewith for scouring the pipes as they are rotated, ascrubbing unit extending transversely over the pipes and held inengagement therewith, the centers at the other end of the pipes beingremovable to permit the removal of the pipes from or their introductioninto the machine, and means for feeding sand and water between the upperand lower scrubbing units.

18. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, scrubbing material supported under the pipes and inengagement therewith for scouring the pipes as they are rotated,scrubbing material supported over the pipes and held in engagementtherewith, and eccentrics for moving the scrubbing materiallongitudinally of the pipes.

19. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, scrubbing material supported under the pipes and inengagement therewith for scouring the pipes 'as they are rotated,scrubbing material supported over the pipes and held iti engagementtherewith, the centers at the other end of the pipes being removable topermit the removal of the pipes from or their introduction into themachine, and eccentrics for moving the scrubbing material longitudinallyof the pipes.

Q0. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, scrubbing material supported under the pipes and inengagement therewith for scouring the pipes as they are rotated,scrubbing material supported over the pipes and held in engagementtherewith, and eccentrics for moving the scrubbing material transverselyof the pipes.

2l. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, scrubbing material supported under the pipes and inengagement therewith for scouring the pipes as they are rotated,scrubbing material supported over the pipes and held in engagementtherewith, the centers at the other end of the pipes being removable topermit the removal of the pipes from or their introduction into themachine, and eccentrics for moving the scrubbing material transverselyof the pipes.

22. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, scrubbing material supported under the pipes and inengagement therewith, for scouring the pipes as they are rotated,scrubbing material supported over the pipes and held in engagementtherewith, and eccentrics for moving the scrubbing materiallongitudinally and transversely of the pipes.

23. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, scrubbing material supported under the pipes and inengagement therewith for scouring the pipes as they are rotated,scrubbing material supported over the pipes and held in engagementtherewith, the centers at the other end of the pipes being removable topermit the removal of the pipes from or their introducn tion into `themachine, and eccentrics for moving the scrubbing material longitudinallyand transversely of the pipes.

Q4. In a machine for scouring pipes, supports for the pipes, means forrotating the pipes, and a plurality of independently movable scrubbersabove the pipes for scouring the same.

25. In a machine for scouring pipes, supports for the pipes, means forrotating the pipes, a plurality of independently movable scrubbers abovethe pipes, and a plurality of independently movable scrubbers beneaththe pipes, such scrubbers adapted to scour the pipes.

Qi In a machine for scouring pipes, supp orts for the pipes, means forrotating the pipes, a plurality of scrubbers in engagement with thepipes for scouring the same, and individual means for bringing eachscrubber into engagement with the pipes.

27. In a machine for scouring pipes, supports for the pipes, means forrotating the pipes, a plurality of scrubbers in engagement with thepipes for scouring the same,

individual means for bringing eachscrubber into engagement with thepipes, and a common means for removing the scrubbers from the pipes.

28. In a machine for scouring pipes, supports for the pipes, scrubbersin engagement with the pipes, means for rotating the pipes, and meansfor periodically reversing the direction of such rotation.

29. In a machine for scouring pipes, supports for the pipes, means forrotating the pipes, scrubbers for the pipes, means for supplyingabrading material to such scrubbers, and means for periodicallyreversing the direction of such rotation.

30. In a machine for scouring pipes, supports for the pipes, means forrotating the pipes, scrubbers for the pipes, means for moving suchscrubbers relatively to the supports, and means for periodicallyreversing the direction of such rotation.

3l. In a machine for scouring pipes, supports for the pipes, means forrotating the pipes, scrubbers for the pipes, means for moving suchscrubbers longitudinally and transversely of the pipes, and means forperiodically reversing the direction of such rotation.

32. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rota-tingsuch pipes, scrubbing material supported under the pipes and inengagement therewith for scouring the pipes as they are rotated,scrubbing material supported over the pipes and held in engagementtherewith, the centers at the other end of the pipes being removable topermit the removal of the pipes from or their introduction into themachine, and means for periodically reversing the direction of suchrotation.

33. In a machine for scouring pipes, centers for supporting the pipes,gearing connected with the centers at one end of the pipes for rotatingsuch pipes, scrubbing material supported under the pipes and inengagement therewith for scouring the pipes as they are rotated,scrubbing material supported over the pipes and held in engagementtherewith, the centers at the other n Witness whereof, hereuntosubscribe end of the pipes being removable to permit my name this 20thday of Mch., A. D. 1909.

the removal of the )iaes from or their inx 1 r troduot-ion into che1inachine, cranks "for DANIEL HAYPJS MURPH 5 moving the scrubbingmaterial transversely lVitnesses:

of the pipes, and means for periodically re- H. L. SHERMAN,

Versingthe direction of such rotation. H. G. MILLER.

